Anticreeping device for railway-rails.



F. M. ROBBINS, I ANTICREEFING DEVlCE FOR R'MLWAY RAILS.

APPLICATION FILED MAR. 26. 1917- :51 lII i Patented Apr. 30, 1918,

3 'SHEET5-SHEET I.

F. M. ROBBINS. ANTlQREEPl-NG. DEVICE FOR RAILWAY RAILS.

APPLICATION FILED MAR. 26| 1917- v Patented Apr. 30, 1918.

3 SHEETS-SHEET 2.

x. KW \x w F. M. ROBBINS.

I ANTICREEPING DEVICE ma RAILWAY mms.

APPLICATION FILED MAR. 26. IIQII- Patented Apr. 30, 1918.

3 SHEETS-SHEET 3- rnANK M. ROBBINS, or MAnIoN, INDIANA, AssreNon TO POSITIVE RAIL ANCHOR coMrANY, or MAnIoN, INDIANA, A conronA'rIoN.

ANTICREEPING DEVICE FOR RAILWAY-RAILS.

menace.

Specification of Letters Patent.

Patented Apr. 3%, 131%..

To all whom it may concern:

Be it known that I, FRANK M. RoBBrNs, a citizen of. the United States, residing at Marion, in the county of Grant and State of Indiana, have invented certain new and useful Improvements in Anticreeping Devices for Railway-Rails, of which I do declare the following to be a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification. I T The present invention has for ts ob ect to provide an improved construct on of ra1l anchor or anti-creeping device, whereby the creeping or longitudinal movement of railway rails will be prevented. The invention consists in the novel features of construction hereinafter described, illustrated in the accompanying drawings and particularly pointed outin the claims at the end of the specification.

Figure 1 is a plan view of arailway rall showing one form of my invention applied thereto, a portion of the rail being broken away. Fig. 2 is a view in vertical section on line 22 of Fig. 1. Fig. 3 is a view in vertical section on line 3-3 of Fig. 1. Fig. 4; is a view similar to Fig. 1 but showing a somewhat modified form of the invention. Fig.5 is a view in vertical section on line 5-5 of Fig. 4. Fig. 6 is a plan view showing a further modification of my inventlon. Fig. 7 is a view in vertical section of line 7 7 of Fig. 6. Fig. 8 is a View in vertical section on line 88 of Fig. 6.

In Figs. 1 to 50f the drawings, my invention is shown as applied to tie plates, and in Figs. 6 to 8 of the drawings,the invention is shown as applied to one familiar type of rail anchor commonly known as the Positive rail anchor. It will be understood, however, that the invention is susceptible of more general application and that the details of the invention hereinafter described may be varied without departing from the scope of the invention.

.In Figs. 1 to 5 of the drawings, A desigrates the body of a tie plate, which with my invention applied thereto, also constitutes an anti-creeping device, this tie plate belng shown as formed with lugs or flanges a and c at opposite sides, adapted to engage respectively the base flanges b and b of the railway rail B. As shown, the rail gripping flanges a and a are in offset relation and the tie plate is provided with openings a to receive spikes whereby it may be fastened to the cross tie of the track in usual manner.

The upper surface of the plate A is pro vided with an inclined seat to receive a roller adapted to exert an upward pressure upon the rail in order to prevent the longitudinal movement or creeping of the rail. In the form of the invention illustrated in Figs. 1 to 3 of the drawings, the seat a is shown as inclined upwardly in opposite directions from thecenter and is formed at the bottom with a depression or pocket extending transversely of the face A, and upon the seat a rests a roller C that extends transversely of the plate A and is of such diameter as to project slightly above the face of the plate so as to engage the under side of the base of the rail B. The roller C should be a hard steel roller and the seat should be formed of harder metal than the body of the plate A. Preferably, the seat for the roller C may consist of an inserted strip of hardened steel, as shown in Fig. 3, or theinclined bottom of the depression or pocket in which the roller 0 rests might be chilled in the casting operation so as to give it a greater hardness than the body of the plate.

When the plate A has been placed in position upon the rail, as indicated in the draw ing, with its flangesa and a engaging respectively the base flanges Z) and b of the rail, the bottom face of the rail base will rest upon the roller C. Any tendency of the rail to creep will cause the roller 0 to travel up the inclined seat at the top of the plate A and will cause the roller to exert an upward thrust upon the rail, firmly binding it between the roller and the flanges a and a by which such upward thrust is resisted. Inasmuch as the seat a is oppositely inclined, as shown in Fig. 3, the roller C will serve to wedge against the base of the rail, regardless of the direction in which the rail may tend to creep.

In the modified form of the invention illustrated in Figs. 4 and 5 of the drawings, the plate A has rail gripping flanges a and a and spike holes of, as in the construction hereinbefore described, but in this form of the invention, the plate A is formed at one end with an abutment D adapted to bear against one side of a cross tie E of the track; and the upper portion of this abutment D is provided with a seat or seats a at the base of a pocket or pockets a to receive the roller or rollers C. It is obvious that instead of a single roller, there may be a plurality of rollers and for this reason I have shown two individual rollers in Fig. at of the drawings, these rollers resting upon seats or within individual pockets. The abutment D, by its engagement with the side of the cross tie E, will prevent any longitudinal movement of the cross tie in the direction of the arrow, Fig. 5. The seat a shown in Figs. l and 5 is inclined in one direction only and the plate is therefore best adapted for use on double track roads where the travel, on each track is in one direction. By reference to Fig. 5, it will be seen that any tendency of the rail B to creep in the direction of the arrow there shown, will cause the roller C to move slightly up the inclined seat ar thereby causing the roller to exert an upward thrust upon the base of the rail B, this thrust being resisted by the flanges ct and a, as in the construction hereinbefore described and the rail will thus be held against creeping in the direction of the arrow, Fig. 5.

In Figs. 6 to 8 of the drawings, my invention is shown as applied to a familiar type of rail anchor known upon the market as the Positive rail anchor, this anchor comprising a body member A adapted to extend beneath the base of the rail and being provided at its ends with rail gripping flanges a and a". At one of its ends, the body member A is formed with a depending abutment D cast integral therewith and adapted to bear against one side of the cross tie E. In this form of my invention, the upper face of the body member is provided with a seat a formed at the bottom of a pocket or depression to receive the roller C, this seat a being oppositely inclined from the center, as in the construction illustrated in Fig. 3 of the drawings. The seat a may be rendered harder than the body A of the anchor by chilling the metal of the seat, or an inserted seat, such as indicated in Fig. 3, might be used. Preferably, the seat a is located adjacent the end of the anchor farthest from the abutment D, as clearly shown in the drawings, and this part of the anchor may be thickened, as indicated in Fig. 8, to avoid weakening the body member A by the formation therein of the pocket that receives the roller C. lVith the form of anchor illustrated in Figs. 6 to S, the tendency of the rail B to creep in the direction of the arrow shown in Fig. 6 will cause the flange a to more slightly toward the tie E, such movement increasingthe grip or shackle action of the anchor on the rail flanges Z) and Z). As the body member A. of the anchor is thus shifted slightly in the initial movement of the rail B, the roller C will move slightly along the inclined seat a and will exert an upward thrust upon the rail B, wedging the base flanges of the rail between the roller and the flanges a and a of the body member A In case of any backward movement of the body member A, that is to say, a movement in the direction opposite that shown by the arrow in Fig. 6, the roller C would move slightly along that portion of the inclined surface a nearest the tie E and would wedge the anchor firmly to the rail base, so that all danger of the working loose of the anchor would be avoided.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. An anti-creeping device for railway rails, comprising a member adapted to extend beneath the base of the rail and provided with an upwardly facing, double inclined seat, and a roller located on said seat and adapted to exert upward pressure on the rail.

2. An anti-creeping device for railway rails, comprising a member adapted to extend beneath the base of the rail and provided with an upwardly facing seat of harder material than the body of said member, and a roller located on said seat and adapted to exert upward pressure on the rail.

3. An anti-creeping device for railway rails, comprising a body member adapted to extend beneath the base of the rail and having at its end flanges to engage the base flanges of the rail and having beneath one of said flanges an offset abutment at one end for extending toward one of the cross ties of the track and adapted to produce a shackle action of the device to resist the creeping movement of the rail, said body member being provided upon its upper side adjacent the rail engaging flan e farthest from said abutment with a movable part located at one side of the transverse center of the body member to exert an upward thrust on the under side of the rail flange farthest from said abutment.

4. An anti-creeping device for railway rails, comprising a body member adapted to extend beneath the base of the rail and having at its end flanges to engage the base flanges of the rail and having at one end and at one side of its transverse center an adjacent the rail engaging flange farthest offset abutment extending toward one of from said abutment with an upwardly facthe cross ties of the track and adapted to ing inclined seat and a roller located on said 10 produce a shackle action of the device to seat and adapted to exert an upward presresist the creeping movement of the rail, sure on the rail base.

said body member being provided at the opposite side of its transverse center and FRANK M.'ROBBINS- topics of this patent may be obtained for five cents each, by addressing the "Gommilssfloner of Watentt,

Washington, D. G. 

